Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Bustamite

Bustamite is a calcium manganese inosilicate (chain silicate) and a member of the wollastonite group. Magnesium, zinc and iron are common impurities substituting for manganese. Bustamite is the high-temperature polymorph of CaMnSi2O6 and johannsenite is the low temperature polymorph. The inversion takes place at 830 °C (1,530 °F), but may be very…

Measurement, Type locality & Environment

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Bustamite. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Birefringence
δ = 0.013 – 0.015 Dispersion r < v weak to strong
Category
Inosilicate
Cleavage
{100} perfect; {110} and {110} good; {010} poor
Color
Light pink to brownish red Pink color fades on exposure to sunlight
Crystal class
Pinacoidal 1 (same H-M symbol)
Crystal habit
Usually tabular or equant to prismatic; commonly massive, often compact and fibrous

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Cell parameters

Type locality

Environment

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Bustamite

Nodes34
Edges33
Triples51
Avg. degree1.94
Density0.058824
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Bustamite

Top relations

related to Type locality · 16
Bustamite → Both, Franklin, Franklin Mine, Jonotla, José María Bustamante, Mexican, Mexico, Mexico Mining Seminary, New Jersey, Puebla, Septiem, Sussex County, Tetela, The, US, Vesuvianite
related to Environment · 7
Bustamite → At, Cambrian, Franklin, Franklin Marble, In Cambrian-Ordovician, Precambrian, These
is a · 3
Bustamite → calcium manganese inosilicate, high-temperature polymorph of CaMnSi2O6 and johannsenite is the low temperature polymorph, triclinic mineral
related to Cell parameters · 2
Bustamite → A-centered, There
Birefringence · 1
Bustamite → δ = 0.013 – 0.015 Dispersion r v weak to strong
Category · 1
Bustamite → Inosilicate
Cleavage · 1
Bustamite → {100} perfect; {110} and {110} good; {010} poor
Color · 1
Bustamite → Light pink to brownish red Pink color fades on exposure to sunlight
Crystal class · 1
Bustamite → Pinacoidal 1 (same H-M symbol)
Crystal habit · 1
Bustamite → Usually tabular or equant to prismatic; commonly massive, often compact and fibrous

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

cell formula unit type franklin group manganese wollastonite johannsenite rhodonite locality inosilicate rocks galena new space biaxial references triclinic value

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
BustamiteBirefringenceδ = 0.013 – 0.015 Dispersion r < v weak to strong1.00infobox
BustamiteCategoryInosilicate1.00infobox
BustamiteCleavage{100} perfect; {110} and {110} good; {010} poor1.00infobox
BustamiteColorLight pink to brownish red Pink color fades on exposure to sunlight1.00infobox
BustamiteCrystal classPinacoidal 1 (same H-M symbol)1.00infobox
BustamiteCrystal habitUsually tabular or equant to prismatic; commonly massive, often compact and fibrous1.00infobox
BustamiteCrystal systemTriclinic1.00infobox
BustamiteDana classification65.2.1.21.00infobox
BustamiteDiaphaneityTranslucent to transparent1.00infobox
BustamiteFormulaCaMn2+Si2O61.00infobox
BustamiteIMA symbolBst1.00infobox
BustamiteLusterVitreous1.00infobox
BustamiteMohs scale hardness5.5 to 6.51.00infobox
BustamiteOptical propertiesBiaxial (−), 2V=34° to 60°1.00infobox
BustamiteOther characteristicslattice: A B1 Specimens from the Franklin Mine are fluorescent red in longwave ultraviolet light. Not radioactive1.00infobox
BustamitePleochroismWeak, X and Z orange, Y rose1.00infobox
BustamiteRefractive indexnα = 1.640 – 1.695, nβ = 1.651 – 1.708, nγ = 1.653 – 1.7101.00infobox
BustamiteSolubilityPartly soluble in HCl.1.00infobox
BustamiteSpace groupI11.00infobox
BustamiteSpecific gravity3.32 to 3.43 (observed) 3.40 (calculated)1.00infobox
BustamiteStreakWhite1.00infobox
BustamiteStrunz classification9.DG.05 (10 ed) 8/F.18.40 (8 ed)1.00infobox
BustamiteTwinningRare. Simple twins with (110) as the composition plane1.00infobox
Bustamiteis acalcium manganese inosilicate0.90text
Bustamiteis ahigh-temperature polymorph of CaMnSi2O6 and johannsenite is the low temperature polymorph0.90text
Bustamiteis atriclinic mineral0.90text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.